Does 6CIT work for patients with sensory impairment?

6CIT has advantages and limitations for sensory-impaired patients: Advantages: No written or visual components — hearing-impaired patients with functioning hearing aids and visually impaired patients can complete 6CIT as a purely verbal test. Limitations: Patients with severe hearing impairment preventing reliable verbal communication cannot complete 6CIT even with hearing aids. Severe dysarthria or speech problems may prevent some response items. For patients who cannot reliably complete 6CIT due to sensory impairment, informant-based tools (AD8, IQCODE-16) are more appropriate primary screening tools.

When should 6CIT results trigger urgent specialist referral?

Urgent memory service or geriatric medicine referral is warranted when 6CIT is positive (8 or above) combined with any of: rapid functional decline over weeks to months (suggests treatable cause — delirium, subdural haematoma, normal pressure hydrocephalus); age below 65 (early-onset dementia requires specialized assessment); significant behavioral changes (agitation, personality change, psychosis) alongside cognitive decline; recent falls with head injury; or high caregiver or family distress requiring coordinated support. Standard (non-urgent) referral is appropriate for gradual-onset cognitive decline in older adults without these features.

What evidence supports 6CIT for primary care use?

Original validation: Brooke P and Bullock R (1999, International Journal of Geriatric Psychiatry) — sensitivity 78%, specificity 100% at cutoff 8/28 in UK primary care patients, compared to clinical dementia diagnosis. Subsequent studies: Swain DG et al. (2012) — sensitivity 79%, specificity 93% in acute hospital admissions. Cosco TD et al. (2015) — cross-cultural validation in multiple European settings. The 6CIT has been endorsed by NHS Scotland, NHS England, and the UK Department of Health for primary care dementia case finding in multiple quality improvement frameworks.

Can 6CIT be used to assess delirium?

6CIT can detect acute cognitive impairment consistent with delirium but is not a delirium diagnostic tool. Serial 6CIT in hospitalized patients (administered at admission and at 24-48 hours) can detect acute cognitive change suggestive of delirium — a significant score rise (3 or more points) between assessments in a previously cognitively intact patient suggests delirium superimposition. For formal delirium diagnosis, the Confusion Assessment Method (CAM) or 4AT scale are the validated diagnostic tools. 6CIT positive in an acutely ill patient always triggers delirium evaluation with CAM or 4AT before attributing impairment to pre-existing dementia.

Online Medical Tools — 6CIT

Printed on 9/4/2026

For informational purposes only. This is not medical advice.

Geriatrics

6CIT

The 6CIT is a brief weighted cognitive screening tool used in primary and acute care settings. It samples orientation, attention, and memory recall in a short format. Scores range from 0 to 28, with higher values indicating greater cognitive impairment signal.

Formula: Weighted total score, range 0-28 (higher scores indicate more impairment signal).

6CIT total score

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How It Works

Administer the 6 scored cognitive test items to the patient

The 6-Item Cognitive Impairment Test (6CIT), developed by Katzman et al. and later adapted by Brooke and Bullock for UK primary care, consists of 6 items: (1) What year is it? (2) What month is it? (3) Give the patient an address to remember: John Brown, 42 West Street, Bedford. Ask them to repeat it immediately (maximum 3 attempts). (4) Count backwards from 20 to 1. (5) Say the months of the year in reverse order (from December back to January). (6) Recall the address given in item 3. The test is administered verbally by the clinician and scored after completion. Each item is scored based on the number of errors or the number of prompts required.

Calculate 6CIT score using weighted error scoring

6CIT uses a weighted error scoring system: (1) Year orientation: 0 points if correct, 4 points if incorrect. (2) Month orientation: 0 points if correct, 3 points if incorrect. (3) Address recall learning: 0 points for successful registration; additional points if multiple prompts required (up to 3 points). (4) Count backwards 20-1: 0 points if no errors, 2 points for 1 error, 4 points for 2+ errors. (5) Months in reverse: 0 points if no errors, 2 points for 1 error, 4 points for 2+ errors. (6) Address recall at end: 0 if correct, up to 10 points for incomplete recall (2 points per element recalled incorrectly: name, number, street, town — 5 elements total). 6CIT total score range: 0-28. Lower scores indicate better performance. Higher scores indicate greater cognitive impairment.

Interpret 6CIT score and trigger appropriate clinical action

6CIT score interpretation: 0-7 = Normal cognitive performance — no specific action required; standard monitoring. 8-9 = Borderline range — reassess with comprehensive cognitive evaluation, consider repeat assessment in 6 months. 10-28 = Probable cognitive impairment — comprehensive cognitive and functional assessment indicated; formal dementia workup (history, examination, labs, neuroimaging as appropriate). The original UK primary care validation (Brooke and Bullock, 1999) used a cutoff of 7/8 for sensitivity 78%, specificity 100%. For primary care case finding with higher sensitivity, a cutoff of 10 or above maintains specificity while detecting more cases. Document score and indicate the clinical action triggered.

Who Uses the 6CIT

Primary Care Dementia Case Finding

General practitioners, primary care physicians, practice nurses, community health workers

The 6CIT's 5-7 minute administration time and simple verbal format make it one of the most practical dementia screening tools for busy primary care settings. Unlike MoCA (which requires printed materials and takes 10-15 minutes), 6CIT requires no materials and can be administered during a routine clinic appointment. It is widely embedded in UK general practice quality improvement frameworks (previously in the NHS Quality and Outcomes Framework for dementia case finding). 6CIT of 8 or above in a primary care consultation triggers a planned comprehensive dementia evaluation appointment.

Emergency Department and Acute Medical Unit Cognitive Screening

Emergency physicians, emergency nurses, acute medicine teams, triage nurses

6CIT is used in emergency departments and acute medical units as a rapid cognitive screen for older adults presenting with acute illness. Cognitive impairment is found in 30-40% of older adult ED presentations and is frequently unrecognized. The 5-7 minute 6CIT can be administered by nursing triage staff without materials. 6CIT of 8 or above in the ED triggers: delirium assessment (CAM or 4AT), medication reconciliation review, capacity assessment documentation, and discharge planning modification (cognitive impairment affects safe discharge threshold).

Annual NHS Dementia Check and Cognitive Health Assessment

UK general practitioners, practice nurses, NHS memory services

6CIT has been one of the most widely used cognitive screening tools in the NHS for dementia case finding in high-risk populations (patients with diabetes, cardiovascular disease, down syndrome). Previous NHS Quality and Outcomes Framework (QOF) indicators supported 6CIT use for annual cognitive health checks in at-risk older adult populations. 6CIT of 8 or above triggers direct referral to a local memory service under the NICE dementia pathway. The 6CIT's UK development and validation makes it particularly well-calibrated for UK primary care population use.

Pre-Operative Cognitive Assessment

Anesthesiologists, surgical teams, pre-operative assessment nurses, perioperative medicine teams

Pre-operative cognitive assessment in older adults identifies patients at elevated risk for post-operative delirium and post-operative cognitive dysfunction (POCD). 6CIT in pre-operative assessment clinics provides rapid cognitive screening before elective procedures. 6CIT of 8 or above is a risk factor for post-operative delirium and prompts: anesthetic technique review (regional vs general), post-operative monitoring protocol activation, family communication about delirium risk, and enhanced post-operative cognitive recovery support.

Telephone Cognitive Screening

Telephone triage nurses, remote healthcare providers, telehealth services

6CIT's verbal-only format (no written or visual materials required) makes it uniquely suitable for telephone cognitive screening — unlike MMSE (which has written components) or MoCA (which requires visual stimuli). 6CIT administered by telephone achieves acceptable psychometric performance for case finding. This property has made 6CIT valuable for: telephone pre-screening before memory clinic referrals, remote annual cognitive health checks, and telephone follow-up of patients with established mild cognitive impairment.

Nursing Home and Care Home Admission Screening

Care home managers, nursing home nurses, care home registered nurses

6CIT at care home admission provides rapid direct cognitive screening to complement informant-based tools (AD8, IQCODE). The 5-7 minute administration requires no materials and can be performed by any trained registered nurse. 6CIT of 8 or above at admission documents cognitive impairment as a baseline for care planning, behavioral management approach, communication strategy, and capacity assessment documentation. Serial 6CIT at quarterly review intervals can detect cognitive deterioration requiring care plan review.

Pro Tips

Allow up to 3 repetitions for address learning but record the number needed

The address registration component of 6CIT allows up to 3 repetitions. Record exactly how many repetitions were needed for the patient to repeat the address correctly — this learning efficiency data provides additional clinical information. Patients who need 3 repetitions to register an address have significantly worse delayed recall than patients who register it in 1 repetition, even if both groups recall the address successfully at the end. Some 6CIT scoring protocols incorporate the number of learning trials as an item score.

Score 6CIT items immediately after administration — do not rely on recall

Score each 6CIT item as it is completed, not retrospectively at the end of the consultation. The weighted scoring system is specific — number of errors on counting backwards, number of months incorrectly recalled in reverse order, and number of address elements recalled correctly all require careful tracking. Retrospective recall of patient responses introduces scoring errors. Consider using a printed 6CIT scoring form to record responses as they occur.

Address recall is the most heavily weighted item — give it focused attention

The delayed address recall component (item 6) is weighted up to 10 points out of the 6CIT maximum of 28 points — making it the single most influential item. The address has 5 scorable elements (first name, surname, house number, street name, town name). For each element incorrectly recalled at the end of the test, 2 points are added. Meticulous recording of which specific address elements the patient recalls (or fails to recall) is essential for accurate 6CIT scoring.

Beware of education effects — 6CIT may penalize patients with limited formal education

Like MMSE, 6CIT includes items that require formal education-related skills: counting backwards and recalling months in reverse order are more affected by educational attainment than dementia-pure items. Patients with limited formal education (less than primary school) may score higher (worse) on 6CIT due to education effects rather than true dementia. In low-education populations, use IQCODE or AD8 (informant-based tools) as complementary measures, and interpret 6CIT borderline scores with explicit consideration of educational attainment.

6CIT is sensitive to anxiety and acute illness — reassess when the patient is well

Acute anxiety, depression, and medical illness (fever, pain, metabolic disturbance) can impair 6CIT performance independently of dementia. A 6CIT score of 8-12 during an acute illness presentation may represent cognitive effects of acute illness rather than underlying dementia. When 6CIT is elevated in the context of acute illness, document this context and plan reassessment when the patient has recovered from the acute illness (typically 4-6 weeks after acute illness resolution).

Use a standard address for your geographic context

The classic 6CIT address (John Brown, 42 West Street, Bedford) is validated for UK populations. For non-UK settings, a culturally appropriate address with similar structure (first name, surname, house number, street name, town name) can be substituted. The address should be: culturally plausible, not associated with famous landmarks or well-known addresses, and consistent across all patients in a clinical setting. Consistency in address choice is essential for intra-setting comparisons and serial monitoring.

Common Questions About Your Results

6CIT vs MMSE: Both ~5-10 minutes; 6CIT does not require written materials or visual components (making it more suitable for visually impaired patients); 6CIT was specifically validated in UK primary care populations; comparable sensitivity/specificity. 6CIT vs MoCA: MoCA is more comprehensive (30 items covering executive function, visuospatial abilities, language) and more sensitive for mild cognitive impairment; 6CIT is faster and requires no materials. 6CIT vs Mini-Cog: Mini-Cog is faster (~3 minutes) but has lower sensitivity; 6CIT has better sensitivity for mild-moderate dementia. Clinical recommendation: 6CIT for primary care when a 5-7 minute verbal screen is needed; MoCA when comprehensive cognitive domain coverage is required; Mini-Cog when fastest screening is the priority.

The original Brooke and Bullock (1999) validation in UK primary care used a cutoff of 7/8 (0-7 = normal, 8 or above = abnormal), achieving sensitivity 78%, specificity 100% for clinical dementia diagnosis. Subsequent studies have used various cutoffs (7, 8, 10) depending on the balance of sensitivity and specificity required for the clinical context: For primary care case finding where false negatives are concerning, a lower cutoff (8 or above) provides better sensitivity. For definitive diagnostic purposes requiring high specificity, a higher cutoff (11 or above) is appropriate. 6CIT is a screening tool — all positive screens require comprehensive clinical evaluation regardless of the specific cutoff used.

6CIT was originally developed and validated in English-speaking UK populations. The address recall item and months-in-reverse task have some cultural specificity. Cross-language adaptations of 6CIT exist for several European languages (German, French, Italian) and some Asian languages. For populations where English is not the primary language: use culturally adapted validated versions where available; supplement with informant-based tools (AD8, IQCODE-16) that are less language-dependent; interpret 6CIT scores for non-native English speakers with awareness that language effects may inflate scores. In multilingual settings, the informant-based AD8 or IQCODE-16 may provide more reliable screening than 6CIT.

6CIT was developed primarily as a screening tool rather than a dementia severity monitor. However, serial 6CIT administration at clinic visits provides a simple quantitative record of cognitive trajectory. 6CIT score progression of 3 or more points per year suggests active cognitive decline. For more sensitive longitudinal monitoring, MMSE (30 points) or MoCA (30 points) provide greater floor and ceiling effect avoidance than 6CIT (28 points). For clinical trial outcomes, CDR-SB or ADAS-Cog are preferred. 6CIT serial monitoring is appropriate for primary care annual cognitive health review where a brief standardized cognitive performance record is sufficient.

Evidence-Based Methodology

6CIT has longstanding validation in primary-care usage and later diagnostic-accuracy studies across memory and acute-care settings.

Clinical Content Trust

Last reviewed:: April 21, 2026
Guideline version:: General evidence framework v2026.04
Source set version:: Primary-source set v1

How to Interpret Your Result

Higher 6CIT scores indicate greater cognitive concern and support more detailed diagnostic follow-up.

When to Use This Tool

Use as a rapid first-pass cognitive screen in older adults when brief bedside screening is needed.

Limitations

Performance can be influenced by education, language, sensory deficits, and acute illness; it is not a standalone diagnostic test.

For related assessments, see AD8 Screen, IQCODE-16 and SLUMS Score.

Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.

Sources

Changelog

April 21, 2026 · trust-baseline
Clinical trust metadata enabled for this tool page with structured review/version fields.

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Frequently Asked Questions

The 6CIT is a brief, validated verbal cognitive screening test for detecting cognitive impairment in older adults, developed by Katzman et al. and adapted for UK primary care by Brooke and Bullock (1999). It consists of 6 items: temporal orientation (year and month), an address registration and recall task, counting backwards from 20 to 1, and recalling the months of the year in reverse order. Scoring uses a weighted error system (range 0-28), with higher scores indicating greater impairment. A score of 8 or above is the most commonly used threshold for probable cognitive impairment.

The most widely used 6CIT cutoffs: 0-7 = Normal cognitive performance — no specific action required; standard monitoring. 8-9 = Borderline — reassess with comprehensive cognitive evaluation; repeat assessment in 6 months if no other clinical concerns. 10 or above = Probable cognitive impairment — comprehensive cognitive and functional assessment indicated; formal dementia workup. The original Brooke and Bullock (1999) cutoff of 8 or above achieved sensitivity 78%, specificity 100% for clinical dementia in UK primary care.

6CIT weighted scoring: Year orientation: 0 (correct) or 4 (incorrect) points. Month orientation: 0 (correct) or 3 (incorrect) points. Address registration learning errors: 0-3 additional points for needing multiple prompts. Count backwards 20-1: 0 (no errors), 2 (1 error), 4 (2+ errors) points. Months in reverse: 0 (no errors), 2 (1 error), 4 (2+ errors) points. Address recall: 0-10 points, 2 points per element not recalled (5 elements: first name, surname, house number, street name, town). Total range: 0-28.

Delayed recall (item 6) is the most heavily weighted item (up to 10 points) because it assesses the hippocampal-dependent memory consolidation process that is most specifically impaired in Alzheimer's disease. The address registration-to-recall delay (created by the intervening counting backward and months-in-reverse items) tests true episodic memory consolidation rather than immediate repetition or working memory. This delayed recall weighting makes 6CIT particularly sensitive to the memory impairment profile of early Alzheimer's disease, which is the most common dementia subtype in primary care populations.

6CIT typically takes 5-7 minutes to administer, including the address registration, orientation questions, counting task, months reverse task, and address recall. Patients with significant cognitive impairment may require slightly more time if they make errors on the counting or months items. The test requires no written materials, visual stimuli, or special equipment — making it practical for brief clinic consultations, home visits, telephone assessment, and ED triage settings.

The 6CIT is a short version derived from the Blessed Information Memory Concentration (BIMC) test developed by Katzman et al. (1983). The original BIMC was a more comprehensive cognitive test; the 6CIT selected the 6 items with the highest discriminating ability for dementia detection. The Brooke and Bullock (1999) UK primary care adaptation standardized the 6CIT scoring and validated it specifically for primary care screening. The 6CIT is often called the Katzman test in some references, though the Brooke and Bullock adaptation introduced the specific weighted scoring system used today.

Online Medical Tools — 6CIT

6CIT

How It Works

Administer the 6 scored cognitive test items to the patient

Calculate 6CIT score using weighted error scoring

Interpret 6CIT score and trigger appropriate clinical action

Who Uses the 6CIT

Primary Care Dementia Case Finding

Emergency Department and Acute Medical Unit Cognitive Screening

Annual NHS Dementia Check and Cognitive Health Assessment

Pre-Operative Cognitive Assessment

Telephone Cognitive Screening

Nursing Home and Care Home Admission Screening

Pro Tips

Allow up to 3 repetitions for address learning but record the number needed

Score 6CIT items immediately after administration — do not rely on recall

Address recall is the most heavily weighted item — give it focused attention

Beware of education effects — 6CIT may penalize patients with limited formal education

6CIT is sensitive to anxiety and acute illness — reassess when the patient is well

Use a standard address for your geographic context

Common Questions About Your Results

Evidence-Based Methodology

Clinical Content Trust

How to Interpret Your Result

When to Use This Tool

Limitations

Sources

Changelog

Related Tools

AD8 Screen

IQCODE-16

SLUMS Score

MoCA Score

Further Reading

A Comprehensive Guide to Geriatric Medicine: Assessment Tools and Aging Health

Frequently Asked Questions